Question

Which number is rational? (1 point)
Responses

2√4

the fraction with numerator square root of 2 and denominator 4

0.98989898...
0.98989898...

0.23242526...
0.23242526...

15−−√

Answer 1

The rational ones are:

- 2√4 = 2·2 = 4, which is rational.
- 0.98989898... = 0.\overline{98} = 98/99, which is rational.

The others are irrational: √2/4 is irrational (√2 is irrational), 0.23242526... is nonrepeating (not eventually periodic), and √15 is irrational.